<html>
  <body>
    <form action="security_check.php" method="post">
      <p>Username: <input type="text" name="username"/></p>
      <p>Password: <input type="text" name="password"/></p>
      <p>Return URL: <input type="text" name="return"/></p>
      <p><input type="submit"/></p>
    </form>
  </body>
</html>

